;;; org-dial.el --- Provide org links to dial with the softphone
;;; application linphone

;; Copyright (C) 2011  Michael Strey

;; Author: Michael Strey <mstrey@strey.de>
;; Keywords: dial, phone, softphone, contacts, hypermedia

;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; This program is distaributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; `org-dial.el' defines the new link type `dial' for telephone
;; numbers in contacts (refer to org-contacts). Calling this link type
;; leads to the execution of a linphone command dialing this number.

;;; Code:

(require 'org)

;; org link functions
;; dial link
(org-add-link-type "tel" 'org-dial)

(defcustom org-dial-program "linphonecsh dial "
  "Name of the softphone executable used to dial a phone number in a `tel:' link."
  :type '(string)
  :group 'org)

(defun org-dial (phonenumber)
  "Dial the phone number. The variable phonenumber should contain only numbers, whitespaces, backslash and maybe a `+' at the beginning."
  ;; remove whitespaces from phonenumber
  (shell-command (concat org-dial-program (trim-phone-number phonenumber))))

(defun trim-phone-number (phonenumber)
  "Remove whitespaces from a telephone number"
  (setq trimmed_phonenumber
	(mapconcat 'identity
		   (delete "(0)" (split-string phonenumber "[ /-]")) "")))

(provide 'org-dial)

;;; org-dial.el ends here